package com.example.demo1.utils;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.OSSClientBuilder;
import com.example.demo1.repository.PictureDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.Optional;
import java.util.UUID;

/**
 * 阿里云 OSS 工具类
 * 因为不属于controller层，也不属于service层，所以用component注解来存放到IOC容器里
 */
@Component
public class AliOSSUtils {


        private String endpoint = "https://oss-cn-beijing.aliyuncs.com";
        private String accessKeyId ="LTAI5tAZrmKSfKnSJhwqiRy9" ;
        private String accessKeySecret = "HilP8fIUjcyYvIcSToLu94s1ZW32sl";
        private String bucketName = "newwebgo";
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        /**
         * 实现上传图片到OSS
         */
        public String upload(MultipartFile file) throws IOException {
            // 获取上传的文件的输入流
            InputStream inputStream = file.getInputStream();

            // 避免文件覆盖
            String originalFilename = file.getOriginalFilename();
            String fileName = UUID.randomUUID().toString() + originalFilename.substring(originalFilename.lastIndexOf("."));

            //上传文件到 OSS

            ossClient.putObject(bucketName, fileName, inputStream);

            //文件访问路径
            String url = endpoint.split("//")[0] + "//" + bucketName + "." + endpoint.split("//")[1] + "/" + fileName;
            // 关闭ossClient
            ossClient.shutdown();
            return url;// 把上传到oss的路径返回
        }
          @Autowired
          public PictureDao pictureDao;

        public void Delete(IndiExper indiExper){
           String url= pictureDao.findPictureByExperimentNameAndPictureNameAndTeamName(indiExper.getExperiment_name(),indiExper.getPicture_name(),indiExper.getTeam_name()) ;
            if (url == null) {
                throw new IllegalArgumentException("未找到与提供的实验名称和团队名称匹配的图片");
            }
            String newurl = url.substring(url.lastIndexOf('/')+1);
         ossClient.deleteObject(bucketName,newurl);
        }
    }

